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Background: Eosinophilic oesophagitis (EoE) is an increasingly common cause of dysphagia in both children and adults, as well as one of the most prevalent oesophageal diseases with a significant impact on physical health and quality of life. We have provided a single comprehensive guideline for both paediatric and adult gastroenterologists on current best practice for the evaluation and management of EoE., Methods: The Oesophageal Section of the British Society of Gastroenterology was commissioned by the Clinical Standards Service Committee to develop these guidelines. The Guideline Development Group included adult and paediatric gastroenterologists, surgeons, dietitians, allergists, pathologists and patient representatives. The Population, Intervention, Comparator and Outcomes process was used to generate questions for a systematic review of the evidence. Published evidence was reviewed and updated to June 2021. The Grading of Recommendations, Assessment, Development and Evaluation (GRADE) system was used to assess the evidence and make recommendations. Two rounds of voting were held to assess the level of agreement and the strength of recommendations, with 80% consensus required for acceptance., Results: Fifty-seven statements on EoE presentation, diagnosis, investigation, management and complications were produced with further statements created on areas for future research., Conclusions: These comprehensive adult and paediatric guidelines of the British Society of Gastroenterology and British Society of Paediatric Gastroenterology, Hepatology and Nutrition are based on evidence and expert consensus from a multidisciplinary group of healthcare professionals, including patient advocates and patient support groups, to help clinicians with the management patients with EoE and its complications., Competing Interests: Competing interests: See Supplementary Table 1., (© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)

These guidelines on oesophageal manometry and gastro-oesophageal reflux monitoring supersede those produced in 2006. Since 2006 there have been significant technological advances, in particular, the development of high resolution manometry (HRM) and oesophageal impedance monitoring. The guidelines were developed by a guideline development group of patients and representatives of all the relevant professional groups using the Appraisal of Guidelines for Research and Evaluation (AGREE II) tool. A systematic literature search was performed and the GRADE (Grading of Recommendations Assessment, Development and Evaluation) tool was used to evaluate the quality of evidence and decide on the strength of the recommendations made. Key strong recommendations are made regarding the benefit of: (i) HRM over standard manometry in the investigation of dysphagia and, in particular, in characterising achalasia, (ii) adjunctive testing with larger volumes of water or solids during HRM, (iii) oesophageal manometry prior to antireflux surgery, (iv) pH/impedance monitoring in patients with reflux symptoms not responding to high dose proton pump inhibitors and (v) pH monitoring in all patients with reflux symptoms responsive to proton pump inhibitors in whom surgery is planned, but combined pH/impedance monitoring in those not responsive to proton pump inhibitors in whom surgery is planned. This work has been endorsed by the Clinical Services and Standards Committee of the British Society of Gastroenterology (BSG) under the auspices of the oesophageal section of the BSG., Competing Interests: Competing interests: RS: Dr Falk, advisory board and symposium sponsor; Given, honoraria for speaker’s fees. DS: Sandhill/Diversatech and Jinshan-Omon, consultancy work, research grants and equipment; Given, advisory board. JDC: trustee for FORT patient support group. KB: Reckitt Benckiser, honoraria for speaker’s fees., (© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)

Background: Symptom based diagnosis is not reliable in patients with swallowing problems, heartburn, and other dyspeptic complaints. The aim of investigation is to provide clinically relevant measurements of gastrointestinal structure and function that explain the cause of symptoms, identify pathology, and guide effective management. Current practice rarely meets these ideals., Purpose: This review considers recent advances in technology such as high-resolution manometry (HRM) with esophageal pressure topography (EPT), HRM with impedance, high frequency ultrasound, and endoscopic functional luminal impedance planimetry (Endo-FLIP) that provide new opportunities to identify the pathophysiologic basis of esophageal symptoms and disease. As experience with these new devices increases researchers are developing new methodologies that maximize their utility in clinical practice. For example, application of HRM to assess motility and function during and after a test meal can identify the causes of swallowing problems, reflux and other postprandial symptoms and intra-operative application of Endo-FLIP may help surgeons perform antireflux surgery. These examples illustrate the potential of physiologic measurement to direct rational and effective clinical management for individual patients., (© 2012 Blackwell Publishing Ltd.)

Background In the absence of major dysmotility, esophageal manometry with water swallows rarely explains the causes of esophageal symptoms and disease. This methodology development study assessed esophageal function and symptoms during a test meal in patients with reflux symptoms and asymptomatic controls. The impact of this approach on manometric diagnosis and clinical outcome was reviewed. Methods 18 patients with reflux symptoms and 10 healthy volunteers underwent high resolution manometry (HRM) with 5 mL water swallows, 200 mL water drink, and standardized solid test meal followed by 10 min postprandial observation. The number of symptoms associated with esophageal dysfunction ( SAD) divided by total symptoms (dysfunction symptom index [D-SI]) was calculated. Ambulatory reflux pH-monitoring was performed. Final diagnosis and clinical outcome were documented at 2 years. Key Results Meal intake took longer in patients than controls (552 vs 339 s) and this was associated with a higher number of ineffective swallows in this group (51% vs 28%; p < 0.001). No swallowing problems occurred with water swallows but 12/18 (66%) patients had SAD during either the meal or postprandial observations with D- SI >50% in 9/12 (75%). Compared with water swallows, manometric classification was altered in 12/18 (67%) and clinical diagnosis was altered in 7/18 (39%) patients due to test meal observations. Conclusions & Inferences A novel methodology for the detection of symptomatic dysmotility during a test meal and postprandial observation is presented. This technique increased the diagnostic yield of esophageal dysfunction in patients presenting with reflux symptoms. Long-term follow-up indicated that these observations can guide effective clinical management. [ABSTRACT FROM AUTHOR]